Stone crusher



L. H. KESSLER 2,258,059

STONE CRUSHER Filed Dec. 17, 1937 iatented Oct. 7, i941 "UNITED" STONECRUSHER Lee H. K essler, Springville, N. Y. Application December 17,1937, Serial No. 130,419

This invention relates to certain useful improvements in ore crushers orpulverizing ma chines for use with stone, gravel, oreand like materials.a I

It has for one of its objects to provide 'a machine of this characterwhich is so designed and constructed as to create and impose a wedgingaction or wedging blow or impact upon the material being treated withmaximum force and witha minimum expenditure of power.

Another object of the invention is to provide a stone crusher andpulverizer which is constructed as. to have a uniform crushing area perstroke of the machine to thereby increase its efficiency and capacity.

A further object is to provide a high speed machine of this characterwhich is composed of a minimum number of parts, which is durable andinexpensive in construction, and which is provided with a constant powerunit so designed that the centrifugal force created or developed by itis transmitted into a vibrating force for crushing or pulverizing thematerial by successive blows or impacts A still further object is toprovide a stone crusher or pulverizer which is so designed as to bereadily adjustable for sizing the material being crushed, and'which canbe readily dismembered to effect renewal or replacement of the crushingelements when desired. a

In the accompanying drawing:

Figure 1 is a sectional front elevation of the stone crusher andpulverizer embodying my invention. Figure 2 is a side View thereof.Figure 3 is a horizontal'seotion taken substantially in the plane .ofline 3-3, Figure 1. Figure 4 is a fragmentary sectional side elevationof a'modified form of my invention.

Similar characters of reference indicate corresponding parts throughoutthe several views.

Referring now to Figures 1-3, inclusive, of the drawing, It! indicates afixed base adapted to be bolted or otherwise secured to a suitablefoundation and having a discharge passage ll therein through which thecrushed or pulverized material passes into a bin, chute or receptacleprovided for receiving it. Seated in a centrallydisposed socket orrecess l2 formed in this base and rising above the same is asubstantially conical mandrel or fixed jaw member l3, said mandrel beingmade of appropriate metal and heavy in design to effectually withstandthe crushing blows or impacts during crushing of the material.

The movable jaws or reciprocating element of iii form of aresiliently-suspended sleeve or shell M, which is disposed in floatingfashion ov'erand in encircling or concentric relationto the 'fixed'jawand adapted to be reciprocated'in the-direction 1 of its axis by "quick,snappy strokes toward and I insure maximum crushing efiiciency andprevent plugging. The reciprocating jaw is likewise heavy in design andisguided in its movements on upright posts l6 rising from the base l0and engaging openings formed in lugs-l1 extending laterallyfrornadjacent'the lower end of such jaw. Applied to these-'guide-po'stsand interposed between the guide-lugs and base l are springs I8-whichserve to yieldinglysupport and urge the reciprocating jaw in thedirection 'jof its up-stroke and at the same timev function-as shockabsorbers during the operationofthe machine. For the purpose'of readilyadjusting theoperative relationship of the companion jaw membersforsizing purposes within certain limitsfsl'lims or spacers 19 :may beapplied to the lower ends of the posts l6"t,o'thereby set thereciprocating jaw M at any desired elevation relative to "the fixed jaw.For maximum adjustments; the hired jaw or mandrelal 3 is made indifli'ere'nt sizes-andreadily substituted whendesired.=..s.'Iheiupper.end of the reciprocating shell-like'jaweiisop'eng-"as-indicated at20, forthe introductionof the material into thecrusher. j i r The resiliently-suspended jaw is adapted to bereciprocated in the direction of its axis toward and from the fixed jawl3 at a relatively high speed to transmit rapid and successive wedgingblows or impacts to the material in the crushing throat formed by thejaw members. The preferred means for transmitting crushing or powerstrokes to the reciprocating jaw consists of a vibratory unit supporteddirectly on such jaw and including a housing 2| attached to the latterby brackets 22, and parallel horizontal shafts 23, 24 journaled at theirends in the housing and having weights 25, 26, respectively, extendingradially therefrom and concealed within the housing. The shafts aredriven in opposite directions from a drive pulley 21 and intermeshthecrusher is cylindrical and preferably in the 55 ing gears 28 and theweights on one shaft balance those on the other with such weights sodisposed as to move uniformly upwardly and away from each other from thepositions shown in Figure 2 to impart an up-thrust to the jaw l4 andthen to move downwardly and toward each other in out-of-balancerelationship to impart a downthrust or wedging stroke to such jaw tocrush the material by sharp blows or impacts in direct axial paths.

While the weights may be arranged in any suitable manner on' the shafts2,3, 24-, they are preferably disposed as shown in Figure 1, the shaft23 having two weights 25 adjacent its ends while the shaft 24 has asingle weight 26 centrally thereof in clearance relation to and whichequals the combined weights of those onthe companion shaft. The crushingpower created' is directly proportional to the weight of;thereciprocating jaw M, the vibration-creating weights 25, 26 and thetension of the shock absorbing springs l8; and thesee maybe varieddnaccordance with. engineeringdesign to produce the results, desiredv For:efiecting ad-justment of the machine for; minimum changes m sizing of:the crushedma;- terial, the spacers; l9 may,bevariedaccordingly and formaximum sizing changes a; differentsizedmandrel-or fixed jaw. I'S-maybe-used,

Instead of: mounting; the vibratory unit in superposed relationoven thetop of: the resiliently -supportedjaw I4 as shownin-Figures l;and 2; itmay be mountedy at opposite sides of; such jaw in-themanner-depictedinFigure 3; wherein 29 indicates the driven-or-puiley'shaft connected atits ends by, bevel gears-3D;to the; weight-bearing shafts 3l' which arejournaledat theirg ends in suitablebearing brackets 32 formed onthe jaw.Asuitable housing '33 maybe providedfor, concealing the; shaft-weights-34'.

I claimas my. invention:

1-: A machine of the-character described, comprising. a fixed,substantially conical jaw mem. ber; a sleeve-li'keg'law member-disposed.over and in co axialrelation-with said'conical jaw member and having atapered-. impact; surface forming a substantially V-shapedcrushingthroat with said conicaljaw membenand; rotatable means including,weights thereon, for impartingv by. cen-. trifugal force areciprocatorymovementito said sleeve-dike: ja-w, member in the: direction. of: itsaxis toward and: from. thefixed jaw member, said means being directlymounted on said sleeve-likejaw. member. toerevolver about. an axis.substantially at? right...angles to the related. axis of thejaw members.

.e achineiof'thezcharacten described; coma prisi-ng: a fixedsubstantially. conical jaw member, a sleeve-like jaw member disposedover and; in coaxial relation Wlthi said: conical. jaw member and havinga tapered impact surface forming a substantially V-shaped crushingthroat with said conical jaw member, means engageable with saidsleeve-like jaw for guiding it in axial paths toward and from said fixedjaw and including yieldable elements for restraining movement of theformer toward the latter, and a vibratory unit applied to saidsleeve-like jaw for transmitting vibratory crushing strokes thereto inthe direction of its axis toward and; from the fixed jaw, said vibratoryunit including a pair of oppositely rotating parallel shafts disposed atright angles to the related axes of said jaw members and havingsymmetrically-balanced weights thereon.

3.. A machine of the character described, comprising a base having anupwardly-opening recesszthereinhand guideposts rising therefromexteriorly. of such recess, a fixed, substantially conical jaw memberseated in said base-recess, a sleeye-likejaw member disposed over and insurrounding; relation to said fixed jawv member and guided onsaid" postsfor axial displacement toward and from the fixed jaw, the sleeve-like.jaw having a; tapered impactsurface forming a substantially V-shapedcrushing; throat with the fixed jawmember, springs; applied, tosaid'posts for yieldingly supporting said sleeve=like jaw memberinoperativerelation to the fixed jaw and for yieldingly restraining themovement of. the former towarclthe latter,,and means applied to andborne wholly by said sleeve-like jaw for transmitting .by. centrifugalforce an axial vibratory movement thereto toward and from the companionjaw member, said. means. consisting ofrevolvable shafts mounted on. saidmovable jaw member and having weights. thereon. disposed to impartsuccessiveup and down thrusts to such jaw member;

4. A machine of thecharaoter described, comprising superposed,relatively movable jaw members disposed in coaxial relation and havingopposingimpact Walls forming a substantially V- shaped crushing throatbetween them, the lowerv ber. inoperative relationtothe companion jaw,member: and yieldingly restraining its movementtowardthe latter.

r H; KESSLER.

